Lee took up rhythmic gymnastics in her second year of elementary school, as she fell in love with rhythmic gymnastics that she happened to see on TV.[2] She made her senior debut in 2004, when she competed at the Asian Championships where she took 8th place in the All-Around and 7th with ball.[3][4] A year later she finished 54th in the All-Around at the 2005 World Championships in Baku.[5]
In 2006 she took part in the Asian Championships in Surat, winning bronze with clubs tied with Yukari Murata and Lai Ying-Tzu.[6] In December of the same year she finished 8th in teams, along Lee Ji-ae, Sin Un-jin and Yoo Seong-oeun, and 11th in the All-Around at the Asian Games in Doha.[7] At the 2007 World Championships she took 51st place in the All-Around.[8]
In 2009 she took 50th place in the World Championships in Mie, Japan.[9] A month later, in October she won team silver along Kim Yun-hee, Shin Soo-ji and Sin Un-jin, at the Asian Championships.[10]
Her last competition was the team event at the 2010 Asian Games, where she only competed with ball, ending 4th along Gim Yun-hee, Shin Soo-ji and Son Yeon-jae.[11]
After retiring from her athletic career in 2010, she turned to musical theatre.[2]
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South Korea 
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